Sash-fastener.



N0. 643,|95. Patented Feb. I3, |900.

l H. McGAHEv.

SASH FASTENEH.

(Application filed Api', 22, 1899.) (No Model.)

WTNEEEE- IMQ/ @57M mail NVENTUR H Q l I 'Hl-:NW MEEAHU ira STATES PATENT OFFICE.

HENRY MCGAHISY, OF CAMBRIDGE, MASSACHUSETTS.

sAsH-FASTENER.

SPECIFICATION forming part of Letters Patent No. 643,195, dated February 13, 1900.

Application filed April 22, 1899. Serial No. 714,013. (No model.)

The device is under the control of an `actu-` ator device having preferably a detachable key.

Figure l shows a Window-frame with an upper and a lower sash both closed. Fig. 2 is an enlarged detail broken out, showing one edge of the two sash, part of the window-frame, and the fasteners, the full lines showing the fasteners in operative positions, the dotted lines showing the fasteners disengaged. Fig. 3 is a view of the parts shown in Fig. 2 look-V ing from the right. Fig. 4 shows a face view of the key.

. may be of any usual shape or style, I, in-accordance with my invention, adding to the edge of the sash likeengaging plates a, having a series of holes a', separated one from another, according tothe various locking-stations desired for the sash. l

To the inner Wall of the side of the windowframe I attach, by screws h or in any other suitable manner, one end of like fasteners, (shown as spring-lingers b2 63,) each having at one end a prong, as b4 b5, said' prongs being beveled at their ends, said bevels, however, when the fingers are applied to the casing, standing oppositely, as shown in full and dotted lines, Fig. 2, so that the bevel of the prong cooperating with the top sash is presented at the lower side of the prong, while the bevel of the finger coperating with the bottom sash is beveled at its upper side. These iingers are located in the runway orweight-box of the casing or frame, and their free ends overlap, the finger connected with the casing and cooperating with the upper sash being extended upwardly to a point above that occupied by the under edge of the top sash when olosed,while the finger cooperating with the bottom sash is extended downwardly, its

prong terminating at a point below the position occupied by the bottom sash when fully closed. Each' prong stands in a like hole a2 6o of the casing. Between the free ends of these fingers and the casing I have applied a key or actuating device c, (shown as a crank,) sustained at one end in a suitable stand 2 and at its other or outer end in apart of the casing A, the crank crossing both `fingers near their pronged ends, the outer endof the crank being shown as made square or of other shape than round in cross-section to enable a key d to be applied to the said-end to turn the crank..

The drawings show the two sashes locked and neither can be moved.

` To open the window or move either sash, the operator will apply the key and turn the actuating device intoits dotted-line position,

Fig. 2, operating both fingers and Withdrawing both prongs from the locking-holes of the two sashes. In this condition either or both sashes may be moved, raised, or lowered,

and when in the desired position the crank 8o v this condition one may easily 'lower the bot- Let itbe supposed tom sash or raise the top sash to close them, 9o

each sash being locked from station to station, such free movement of the said sash in the direction stated being permitted by the beveled ends of the prongs; but it will be understood that the bottom sash cannot be raised nor can the top sash be lowered from any of their locked positions Without using the key to turn the actuating device.

The fastener described affordsa secure lock for the sash and yet permits a sash to be left over night partially open without fear of its being further opened by a burglar, for the key IOO may be laid aside out of reach, so that it could not be turned by a hook or other device. The finger is held in place by a suitable eye g.

Instead of making holes a entirely through the plate a I may use deep notches.

Having fully described 'my invention, what I claim, and desire to secure by Letters Patent, is-

A sash-fastener consisting of two plates each having vertical openings and adapted to be secured to the upper and lowerI sashes, two spring-fingers secured at remote points to the window-frame in the runway or Weight-box thereof and having inturued prongs at their free ends adapted to pass through openings HENRY MCGAHEY.

Witnesses:

GEO. W. GREGORY, EDITH M. STODDARD. 

